問題詳情
16. Close-coupled towing means a method of towing vessels through_______ ice by means oficebreaking tugs with a special stern notch suited to received and hold the bow of the vessel to be towed.
(A) break
(B) surface
(C) storm
(D) polar
參考答案
答案：D
難度：適中0.4
統計：A(1),B(0),C(0),D(2),E(0)